Key-changing device for piano-players and player-pianos.



M. P. HOLDERMAN.

KEY GHANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOa.

APPLICATION FILED JULY 9,1909. 1,030,1 82., Patented June 13,1912.

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M. F. HOLDERMAN. KEY CHANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOS.

APPLICATION FILED JULY 9, 1909.

Patented June 18, 1912.

9 SHEETSSHEET 2.

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M. P. HOLDERMAN. KEY CHANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOS. APPLICATION PlLED JULY 9,1900.

1,030,182, Patented June 18,1912.

9 SHEETS-SHEET 3.

Mai/44 I I i m "M" OZ 3 a 3 r N w M H w M. F. HOLDERMAN. v KEY CHANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOS.

APPLIGATION FILED JULY 9, 1909.

Patented June 18, 1912.

9 SHEETS-SHEET 4.

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may.

M. F. HOLDERMAN. KEY CHANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOS.

APPLICATION FILED JULY 9, 1909. 1,030,182, Patented June 18, 1912.

9 SHEETS-SHEE'LB.

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M. P. HOLDBRMAN. ANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOS. APPLICATION FILED JULY 9, 1909. 1,030,182. Patented June 18, 1912.

9 SHEETS-SHEET 6.

KEY CH M. P. HOLDERMAN. EVIGE FOR PIANO PLAYERS AND P LAYER PIANOS.

KEY GHANGING D APPLICATION FILED JULY 9, 1909.

Patented June 18, 1912.

9 SHEETS-SHEET 7.

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E MIME w Ti u E W1 TNESSES M. F. HOLDBRMAN. KEY CHANGING 1mm; FOR PIANO PLAYERS AND PLAYER mnos. APPLIGATION'IILED JULY 9, 1909.

Patented June 18, 1912 FIE. l7 7 S IIIIIIIIIIIIIII LVI/ENTOR A n'orney M. P. HOLDERMAN. KEY CHANGING DEVICE FOR PIANO PLAYERS AND PLAYER PIANOS.

APPLIOATION FILED JULY 9,1909.

Patented June 18, 1912.

9 SHEETS-"EH25"? MARION F. HOLDERMAN, OF WASHINGTON, DISTRICT OF LUMBIA.

KEYFCHANGING DEVICE FOR PIANO-PLAYERS AND PLAYER-PIANOS.

To. all whom it may concern:

Be it known that I, MARION F. HOLDER- MAN, a citizen of the United States, residing at Washington, in the District of Columbia,

have invented certain new anduseful Improvements in Key-Changing Devices for Piano Players and Player-Pianos; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it zappertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to'new and useful improvements in piano players or player pianos and other instruments and comprises means whereby one or the other, or both, of the spools, adapted to carry the perforated music sheets, may be moved longitudinally for the purpose of playing apiece of music in any of the different keys, or to make the music sheet track, or run trueto prevent tearing of the edges of the music sheet on the end flanges of the music spools in playing or rewinding, and indicating means showingthe key or keys and the different adjustments.

The invention consists further in the provision of longitudinally adjustable spools or reels of piano players, thus adapting the apparatus for using perforated sheets of different widths, and providing mechanism whereby one spool or another may be extended or shortened.

The invention comprises various details of construction, combinations and arrangements of parts which will be hereinafter fully described and then specifically defined in the appended. claims.

I illustrate my invention in the accompanying drawings, in which Figure l is a side elevation of myimproved apparatus. Fig. 1 is a detail perspective view of a spool moving member. Fig. 2 is a sectional view showing a modified form of the means for moving the spools longitudinally. Fig. 3 is a sectional view through a portion of a well of a piano player showing sections of a spool mounted therein. Fig. 4 is a similar view showing a. slight modification of the construction of the spools. Fig. 5 is a sectional view on line I Specification of Letters Patent.

Application filed July 9, 1909. Serial No. 506,887.

5-5 of Fig. 4. Fig. 6 is a central sectional view on 'line 66 ofFig. 3. Fig. 7 is a cross sectional view on line 77 of Fig. 4. Fig. 8-is a sectional view on line 8-.8 of Fig. 4. F i 9 is a. sectional view through a well ilFustrat'ing a slig'htl modified form of spool. Fig. 10 is a sectional view on' line 10-10 of Fi 9. Fig. 11 is an end View of the inner on of one of the sections of the spool shown in Fig. 9. Fi l2.is a sectional view showing a modified orm of adjusting ated means for holding a spindle end. Fig. 16 is a detail view of an adjusting collar upon the spindle holding mechanism. Fig. 17 is a sectional view of a modified form of means for engaging and holding the spool. Fig. 18 is a modified form of the construction shown in Fig. 17. Fig. 19 is a detail view of a disk at the end of a spool. Fig. 20 is a modified form of clutch mechanism for engaging a movable collar. Fi 21 is aside elevation showing modified orms of mechanism for moving the spools. Figs. 22 and 22 are elevations of parts of the well of a piano player showing the modified means for moving the spools. Fig. 23 is a detail in elevation showing part of a trackerboard, socket member for holding the spool and means for moving the same. Fig. 24 is a detail view of a forked clutch-throwing member, Fig. 25 is an enlarged detail view of an indicating card. Fig. 26 is an enlarged detail view of my indicating card showing the ditierent keys into which a piece of music may be transposed no matter in what key the piece is perforated. The letters show the key and the figures show the number of perforations the music sheet is to be moved to the right or left for the key Fig. 15 is a detail perspective view showing spnng-actu- I PatentedJune 1 8,1912. 7

desired. For instance, should the piece be performer l ri ht. or lo (lll tail Now showing a modified for;

:ehow mg lino p1 owlur'. whayn ot b lt a m the outsidt and inside o. the wel in a detail viow "-aing a modit tho end :41;

well of whieh i;- l1 spool, and 1 lLlUIfi ot the has a alil! yielding our 5. which ti. temion of 1h Fig. 1 oi the interposed .m jnt'trh :1 or to limit sorlzet n enllaar and a plate tl \Xillt'lt held to the edge u; the plates. 1;? by Hitof the ,srrews; or iher liustening 111mm l i. The oppoaaite end of tl :pool :33 to i-rm'itlod with. a, spindle 11 ll. 7 wings l5 therron at. pesiti. dimnetrirall opwmte and to shown in if 1g. H of the dranizsga. A aot'kt-t metnher 1'6 in formed at the 0nd ol' the rod l7 and is provitlod with blOlH 1B for the reraptton ol -\aid u lugs 'x' ll jtt'bt' as the :od 17 rotates the red or .--.pool l rotato there th.

lvittlll'it tl in an aperture in ne end t-f the w ll. is a tubular shell l thro: x which the rod 1'? passes. and pjm 2e propel. from the rod and extend through the slot; 21 formed in the tubular shell at positions dinmetrically opposite shown clearly in Fig. 2 of the drawln i this con'strtmtimi. it will be noted that the rod 1? splined to the sholl'll but i caused to rotate. tlnarowith. A. collar 22 mounted upon the rod 17 and 1126 a. set screw 22 adapted to hold the anic in a fixed position upon the rod 17. Mount ed upon rod 17 is a revolving r-lnteh collar 23 with an annular groove 22 formed thorein and. in WhlPll the pin; 24 ('arried by tho Y-slmped clutch arms 25 are positioned. Said member 25 to pro vidod with a socket 26 in which a set screw 27 is mounted and adaptod to engage tho upper angled end 28 of tho spml-throwing rod 2%). Said rod 29 is mounted in a b aring 30 upon the trat'kerboard 2 and has; a longitudinal movement thereon and is adapted to have a nmvrn'tent through an aperture in the angled wing of the plate in). A spring ill projects from one of said bearings All) and is adapted to hear yieldingly against tho rod 29, to hold the same from accidental movement.

The lower spool, which is made up of wing! tor the pointed onus u'ie llit 'zllliltl ill the l of the woll. viii-ti 2H its an :1, d t

or than;

ot' the lower a longiltuthual 1 u t my hut 3m and in 1.. wt 2 m7;

but o i uo {l- H! in in inner (an same :napnor flog t 1*. l new l pon rrl for taming the l\ n za'ql lb. Eli and 35 to ru into togeth r and Illl'HYlliLl' the \ame to have (oiled b 'n'ing m unt 32 ndjat-ont It ween the t he tubular ubtallle to regular spring.

A loose eollar 14- i:

2pm tho shalt I l e: f n "out end f win" all of a k t nwunted upon the mg adjaront to one and lho -el and p11,. '13 ll. t mh'ml arfiw =53") of it: f-lnull-throwing nmnlwr engage a g oove (l? in said collar 44 and the angled end 48 of the spool throwing rod it engages he sot'llet ond ot the 'H'PHIlJat ll! and is held in adjuntod position therein by 1:1 am of tho set *-(I'\\ it) l ln' l'llti l! is mounted in lwtll'! Ila-outlaw. upon tlll undor side of the trawlterhoau? and a '--prin; 32 projecting ll'tlll one ol' ai l i -m lug. ilEl'llllKl'S hears \'ieldn;1 'l mm tln roll it". The Full nlw has a l ng lhtlinal mmmmont. through an aporlure in the wi r 51 tho plate 54 v\imilat to that heltrtar lewlilwd of rod 25). thus the roth in l i nywn allowing 1.: hulepvndent inmoments. The end: l 1.1 tw o rod.-, 131} and 49, shown at the loll l!) 1 15;. l of the drawings,

journaled underneath the well player. A segment dial, designated by nu- 54 servin to limit the longitudinal movements of t e rods 29 and 49 in one direction.

Pivotall mounted upon a pin 57 upon one end 0 he well of a piano player is an angled lever 58, one end of which carries a pin 59 having a play in an elongated slot 60 in said plate 54 and itsiother end is pivotally connected to a rod 61 which in turn is pivotally connected at 62 to an operating lever 63, which latter is mounted upon the pivot 64 of the piano meral 65, is fastened to the well of a piano player and has a series of numerals thereon representing the number of apertures it will be necessary to move the spools to play pieces in different keys. The upper convexed edge of said segment plate is provided with a series'of scallops 66 and a pin 67 pro jects from the lever (53, whichlatter is of a resilient material, and isadapted to spring into one or another of the scallops 66 to hold the lever in an adjusted position. A handle 68 upon the rod 61 is afforded as additional means for moving the bar 61 as desired or it' may be used as a pointer having back of it an indicating card with the different keys upon it.

The segment dial may also have the different keys aswell as the numerals.

The shaft 32 has a gear wheel 69 which is fixed. thereto by set screws 69 and is adapted to mesh with a gear wheel mounted upon the longitudinally movable shaft 71. A sprocket wheel 72 is fixed to the shaft 71 and a sprocket chain 7 3 passes about the sprocket wheel. 72 and the sprocket wheel 73 which turns freely on the tubular shaft 19. The hub of the sprockctswheel 73 is provided with an annular grooa'e 74 and a pin 75 projects from the side of said hub and is adapted, when moved in one direction to be positioned so as to contact with a pin 76 which projects from the collar 77 which is keyed to the tubular shell 19 upon one side of the plate 78 which is held to the well by means of the screws 79. Another collar '80 is mounted upon the outside of the plate 78 and held by means of a set screw upon the tubular shaft 19. In order to move the shaft 71 and the wheel 73 simultaneously, I provide a bar 81 one end of which is forked and engages the annular groove 74 in the hub portion of the sprocket wheel 73 and its other end engages a grooved collar 82 which is held by a set screw upon the shaft 71. A bar 84 is fixed to the bar 81 and has a 'longitudinally movable lever 85 connected a suitable guideway one end of the well, and one arm of the lever 87 has an elongated slot 90 formed therein for the reception of a pin 91, shown clearly in Fig. 1 of the drawings, which pin projectslaterally from the contact end of the spool-operating bar 92, which latter has one end angled and recessed as at 93. Said recess is adapted to engage the groove 94 of the clutch collar 95 and the bar 92 is guided in its longitudinal movements by the straps 96 which are fastened to the lower sideof the well. A spring 97 projects from one of the straps 96 and bears yieldingly the bar 92 to hold the same frictionally against accidental movement. The lower end of the lever 87 is pivotally connected by means of a pin 98 with one end of the bar 99 which in turn is pivotally connected to the operating lever 100 having a pin 101 for engagement with one or another of the seallops 66 formed in the segment-scale bar 65, it being understood that the lever 100 is made of a resilient material so as to spring laterally to allow the pin carried thereby to engage orito be disengaged from one of the scallops or notches formed in the bar 65. A

second angle lever, designated by numeral 102, is pivotally mounted upon a pin'103 and a bearing 104 upon the well and one arm of the lever 102 is provided with an elongated slot 105 in which a pin 106 carried by the lever 87 is adapted to have a play. A bar 107, similar in construction to the bar 92, is held to the under face of the upper side of the well by means of straps 108 and has its angled end 109 recessed and engagingan annular groove 110 formed in the clutch collar 111, which means of a set screw. 112 in adjusted position upon the rod 17. A pin 113- mounted upon the bar 107 engages a slot 114 formed in one end of the lever 102.

From the foregoing description of the mechanism shown in Fig. 2, it will be noted that means is afforded whereby as the operating lever 100 is moved in one direction or the other, the two spools may be moved in one direction and returned to their normal portions by the spring 11:) which is mounted upon rod 32 and presses against shell 35 and by means of a spring 9, shown in Fig. 1 of the drawings, and contained between the sides 12 of the boxing shown in Fig. 1.

In Fig. 3 of the drawings, I have shown the two spools, each made up of a plurality of sections, the lower spool having the three sections 116, 117 and 118 mounted to move upon the tubular shaft 119 through which a solid shaft 120 passes, which latter has indenturcs at its ends forming bearings for the set screws 121 in the opposite walls of the well. The intermediate section 117 of the lower spool is provided with a slip 122 which is movable over' the edges of the scale 123 and is provided with a hook 124 for latter is held by against 1 with the vl ringi' 113 u imlenwl t1- llninner face t the well and h a s yieldingjl t againstwthe tnhulazhali Hi and ntiVt tn 1un'nu1ll hold the same in the nmitiun shown in Fig. is nl tin drawinw it gear Wheel 1% i; mum; h n -tt wrew to the Z'Olitl shaft tilt! and i, adapt d tn nuh with the gear wheel llji' uhivh i tixawl in the power driven shaft 12* jnurualed in a hearing 19 in nne end of the well, Saul shatt' US has a grnnl'wl wilzsr i ltl livd thereto n which a 11in lil eaten. "lll'l'it'tl h the angle lever 13%. .\.lit'll flitt'l is unwuntm'l upon a pivot pin end nt the well. An antilillt trit- 1 3! pirated at one end of the angle l -\("1 t t; and i adapted, as the latter itilted upun in pinup tn ennlaet outer tare ui' tlu- Qtfl wheel 12(3 and value the tu alar to inure lnngitudinall; tension at the a ming, 12 an l t! anting the, unuie to rewilul tightly -niniltanmiulv Jith the muwineut nt' tin: :l'i' aheel with the shaft 120, th gym wheel 1*!" l he Withdrawn frnni ine-h with the n. wheel litthua al it lltl Lln lnwin the tit'g -t and w rniate int'lependenll -t the t r' alwel lifi ulna-n the perfnrattid '-ltll i-- lat-t (I .t'u'tflllt) upun the other spi al The loner slaa'l damn in Fig. l is made up at t\ 'ti',-ttl inn. dwignated hy tanner-ah llli: and l 'l i. :nuunlrd u ui a tuhnlat shaft i157. \rhi'rh latter in turn nmnnted unnn a aUlltl lirtl l i in a 1-iuiilar manner as des rihed nupper .qmnl and a aprinl [39 hean .'ir. hlin; l against the end ml the ttll ulat' all 1 7. near wheel lltl lixed hr a at Wren til the :wlid hat't and l1t'l\lit with a near nlu el i ll whirl) is lixed tn the rhill l llit nahl in the lnarinn' Hit. whit'h \luilt lzadapted tn have a lnn g'ilnllinal smu u; tn lhrnn' the gear wheel ill and inal whe -l lltl intu and out nt' llit i. rate l-ai'. tleignaled ln. nu naeral ill. in 'ntml nith itends one in eaeh ni" tlnun ll and t lt and aprinw ,l'li. nne ttWttHwl wi h wellnn. are adapt ed to hear liehling' aejaiiut the har 144 as shown eleail in Figs. t and I ni the thawinns, sewing: tn hn d the 1 inille v l'rietinnally in atljiulwl ln'wltltitl. 'llu' har l'lt has a hunk llH lur engagement, \\ith the ring' upon the end ml the. perl'nrate l heet n'l' HlltSlt'.

Referring to Fig. nt the dra\\'in l have v\hnn'n a quail, made up of thr e new t'iuns 1 th tilt and l rl mounted in the manner sshnnu in l I; and having twospringst a l ti designated by numerals 153 and 154, so cured one tn eaeh opposite side of the well. the, former spring hnaril'lg against the end of the tubular shaft in?) upon nhieh the 3 sections are mounted, While the spring 1111 hears against the gear wheel ,lfttt which i:- niuunted upon the shaft 157 and maltej the ltlllhlC rewind tight. The central seiiun 151 is provided with the scale, bar 158 bridgr ing a central recess S). and 160 is a clip having slits therein. fur the reeeptiun (it; said scale bar.

161 is a hook upnn said clip for ei'uqagement with the eye or ring at. the and of the perforated sheet 0t nnuie. A gear wheel 162 is fixed tn a lnnggitudinally movable shaft 163 and meahe with the gear wheel 150.

In Fig. 12, I have vshown a slight niod i cation at a detail of in inve'luinn in \vh l the tnhnlar shell 'lttl is mounted tn have a longitudinal nuurnu-nt in one end (it the Well and has a. eriea 0t nntrhes ltlS farmed therein to reeeive the wring pawl ltltl tautened at mu- (nd to thinell. Said tuhular shell ltlt alqm pasaes through the plates H37 and Min fastened to the w ry-ante ta ni. one end of the well. and a l,\ t,lt\\ ltEt passes through t w plate ltifw and is adapted tn engage and hold the tuhnlar ahell ltll in a fixed pflhlll lh. A spind e hnldinghearing inenil'ien lLSiQllz'llfit'l by numeral lit), it: n'munted in the tuhular hell 164 and hears ieldin =ly against a eniled spring Tl mounted within the hell It'll, and 172 is a plug; titted nithin the yahell 1G4 and against which said spring 171 is adapted tn heain A threaded plug: 1T3 is mounted in the threaded end of the shell 164 and adapted to regulate the tenaion 0f the spring lTl. ll this proviaion. it will he noted that the \pindle lit) will yield and the tension of the wring hearing against the spindle may he regulated by the threaded plug 172. By the prnvisinn of the adjusting features dz ul'rilved and the shell iltlS provided With 'Hfiltllt's adapted to he engaged by the pawl [(26, the devil-e may he ad inated for lwld ing S])()()l nr reels of ditlerent lengths as' In Fig. 1."). I hate shown a slight; modifieatinn of the inet-l'ianisni illustrated in Fig: 12 in n'hieh the tuhnlar vhell 17L whieh paswes through an aperture in the all of the, well. i held in adjnated position hy 1n an: ot a et frren ii?) and tal'l'itS a yielding spindle-reeeiting hearing nteniher 1TH. A wring: lTT i mounted Within the shell lT-l and agaiud whieh one end at the nuauher 1T6 heam while its other end hears agaiiul one end at a spring 178 and turned iutu a mill 1T! with one end engaging the Flltll lT l.

l) the emutruetinn of the nmditied form illu trated in Fig. 12 lllt'illlS atl'erded for increasing the tension upon the end of the spindle 176, by reason of the additional spring 179 adapting this modified form for use in connection with reels or spindles of different lengths the shell 174 being held in adjusted positions by the set screw 175.

In Fig. -21, I have shown modified means for moving the spools in which mechanism 'is illustrated, means for moving the two spools t ether or one independent of the other an spool 180, which is provided with a spindle 181, is mounted in a yielding spindle socket member 182 with which.a spring 183 engages at one end and its other end is fastened to the frame of the well. The spindle at one end of the spool 180 engages a socket member 184 upon which a clutch collar 185 is mounted having an annular roove 186. A longitudinally movable bar 18 is guided in its movements by the straps 188 upon the under edge of the top of the well and has an angled end which is I forked and bearing against the socket member 184. One end of the bar 187 is threaded and passes through an opening in the vertically disposed bar 189 and nuts190 are mounted for the reception of the threaded end of the bar 187, one upon-each side of the bar 189. The lower end of.the bar 189 receives a rod 191 which is threaded and provided with nuts 192. Said rod 191 has a handle 195 at an angle thereto and which passes up through an openin 196 at the bottom of the well.

Mount upon the up er edge of, the trackerboard 197 is a r0 198 confined to the trackerboard by the straps 199 and-has one end angled and extending into the annular groove 186 formed in theclutch collar 185 and its other end is threaded and passes through an opening in the bar 200. A second rod 201, similar to therod 198, is mounted upon the under edge of the trackerboard and has an angled end en aging a clutch 202 which is mounted upon t e solid spindle of the lower spool.

In Fig.21, I have shown the lower spool as made up of two sections, designated respectively by numerals 203 and'204, with a graduated scale 205 connecting the same. A gear wheel 206 is fastened to the shaft 207 and is in mesh with a gear wheel 208 upon the longitudinally movable shaft 209. The lower end of the bar 200 is fastened to the bar 210 having a handle 211 thereon, forming means whereby the two bars 198 and 201 may be moved simultaneously for moving the two spools. An angled bar 211*,mounted upon the lower end of the well, has a forked end positioned adjacent to the cdllar 212 and forms means whereby the lower spool may be moved independent of the upper one.

In Fig. 21, as shown in the drawing, it will be noted that, by the two operating in which drawings the upper the end flanges of the music spools in playing or rewinding. That by the three levers and four bars the music spools have three independentmovements and accomplish three different and important things, as Well as indicating the key or keys and adjustments of the spools, or music sheet. Also that the music sheet and spools may'fbe adjusted to play in any key or to track, or run true, independent of the angle bars by means of the extension spindles in conjunction with the sectional take-up or winding spool, should any of the bars become broken or inoperative, thus this invention comprises two independent systems of producing the results contemplated.

In Fig. 22 I have shown a modified form of the apparatus in which an angle lever 213 15 mounted upon a pivot 214 and has pivoted at one end a rod 215 which in turn is pivoted to the operating lever 216, While the other end of the lever 213 is pivotally con- .nected to a spool actuating bar 217.

In Fig. 22, I have shown one end of the well in section broken away and in which a tubular shell 218 is mounted and provided with a collar 219 with a set. screw 220 therein, and 221 designates the shank portion of a socket member 222 adapted to receive the winged end of a spindle. Said socket memher 222 has mounted thereon a rooved collar 223- engaged by the o erating bar 224 and the angled end of the ar 217, which is recessed and straddles the shank portion 221 adjacent to the socket end thereof.

In Fig. 23, I have shown the lever 224 as 1 mounted upon the trackerboard 197 having a forked end engaging the collar 223 while the angled end of the rod 217 engages the shank of the socket member 222.

Referring to Figs. 21, 22, 22" and 23 of the drawings, it will be noted that, by the two operating bars for a single shaft, the upper spool will be moved independent of the lower spool for the purpose of making the music track. The upper bars of the upper spool and the two bars of the lower spool allow both spools to be moved together for the purpose of transposing music or changing the key. The two lower bars on the lower spool allow the movement of the lower spool to make the music run true and thus preventin the tearing of the paper.

In Fig. 24, have shown a forked member 225 held by means of a set screw-226 in (1 11M 21.5. my Hint of ii pin b.-

swt screw whim i;

holder in m) (vii-1H mm m: hv word i': minw with Ami! JE in 1hr 1 321) has? n and H "'!1!- mu 00 to be gun-swan M the otim: f u any rea 1 01 immnw. in can the pen -l MM in w nd M 211 (mm nil? spool m zumlhw uzui m pscwnt having of the (-Igv uf the shmt which umnuumly happens with various forms of piano plu wrs (m0. of cu-1's which achlates 1m spool m an Mum indvpemlvnt-ly may in: operated for and, by the: provision of the slum :1 m

justed to playin any key independent of the angle bars by means of the extension spindles in conjunction with the sectional take up spool should any of the bars become broken or inoperative.

As a rule there is a considerable margin of paper beyond the highest and lowest notes of the music sheet, so that the sheet permits of a certain amount of adjustment without 10 uncovering any of the orifices in the trackerboard If, however, the music sheet is moved so far as to uncover any of the orifices, they may be closed by a slide gravity curtain as shown in my Patent No. 94; @1774,

of May 10, 1910, or a gravity curtain of any stiff material that can be moved along over the end of the tracker-board and music sheet.- until it covers the exposed apertures can be used. It is always best to adjust the music sheet so that none of the notes of the air or melody are exposed.

I W'hile I have illustrated and described particular forms in which my invention may be embodied, I am aware that many modifications may be made therein by zny person skilled in the art without departing -from it. The method of supporting the music rolls .and of making adjustable the winding roll and bars may be modified as will he understood by manufacturers in 4o levers and angle bars and rods may be used on the back, right side, or on otherparts of the well or piano, instead of on the left side and in the well. or spool holder. The levers may be lengthened, shortened, or dift'crently shaped and fastened so as to move the spools with greater or less ease and accuracy and they may be made to move. the poolend extensions on the outside of the well instead o'f inside of it, thus allowing I t Qthe interior to be left clear o-l all mechanism not needed inside of it. The levers may he dispensed with and sliding l ars,

,screw, or other means, used to m re ilk! Qspools, or they may he used under the? keyi lhoard 'ot the piano and the indicators ditimm placed, or dill'cre-ully constructed, ,m; they may have all of the keys longitudinally and vertically imlicated, thus doing away with tl'lclleccssity of moving the indicator when the music vsheet is pretoratcd in (lillcreut keys. The winding and rewind ing' mechai'lism of the lower spool may 'be constriuzted ditl'crcntly and on the outside of the well or in thc lower part of the piano and the same made to conform to differently instead of the indentation number l2, Fig.

1, I may use a long pin fastened to-the collar number 33 and which pin is inserted in a hole in the end of the spool and which will allow the spool to be moved to the right or left and also cause it to be held and turned with the shaft number The angle bars 29 and 49. Fig. 1, may be COl'iSilllCtQd of one piece and have a handle or lever or bar for moving the spools. Screw adjustments may be attached to the angle bar or bars at either or both ends for independent adjust.- ments. All of these modifications come within the domainof mechanical construction and adaptation and do not att'ect the essential'features ot' the invention which is to provide improved and etlicieut means for regulating music rolls simultaneously and in dependently in player pianos, self playing musical instruments, pertorators, and the like, to bring the music sheet correctly in aiincment with the orifices of tintracker and the flanges or endsot the spools, and also to enable the transposing of the musical composition by shifting the perforated or slotted music sheet. one or any number of this means rendering the musical composition effected plcusing' to the car, or to act-our pany the voice. or other musiral instrument at all tiincs and instantly and under all com ditions of the atmosphere or condition of the music roll and v pools,

Tracker-boards or hare with two or more lines of orifices. such as (3 t the in h, 9 to the inch. or difi'crent y spaced, can be used with this devirr. The kcy indicating and adjustment incans may he made in any convcnient mantle and the grzuluaiions, nuinhers, or letters, increased or decreased in size or width on the'indicator cards or s ales to suit/the eye or the location of the 1ndicator cards, and the means t r pointing tothe keys or graillia luils on the indicator scales may he changed h leverage or other mean}; to eorrcspond with the graduutions on the indicators, oradjustments ot the spools, music. sheet or tracker.

lly rcfci'cncc to Fig. l of the drawings, it will he noted that the lwo'spools are adapted to he moved to the left by the tilting of the lever 58; which movcnu-nt is caused by the angled wing of the plate 54 hearing against the nuts 5-43, causing the two barsQQ and 49 to more the spools uiulcr the tensions of the springs upon the spindles of the spools, and it will also be observed that each rod 2.) and 49 may be adjusted independent of each other by means of the nuts 56. It will be noted that either bar 29v or 49 may be moved freely to the left, through the perforations in the wing of the plate 55, but when the nuts come into contact with the plate 55, a further movement of either to the right will cause each bar 29 and 49 to move together.

Referring to Fig. 26 of the drawings, the central column 260 of letters shows the keys in which a. piece. of music may be perforated. The longitudinal column, designated by numeral 261, shows the transposition keys into which a piece may be played by the movements of the spools to the right or left. The numerals at the bottom of Fig. 26 show the perforations from 0 to 12 which will designate the key. The spaces, designated by numeral 262, at the bottom of Fig. 26, designate the holes in the trackerboard which are to be used in conjunction with the numerals for changing the keys.

In Fig. 27 I have shown a view illustrating a gear construction instead of a sprocket chain and in which a gear wheel 263 is shown as keyed to a shell 26l which is mounted upon the adjustable spool shaft 265, which latter is provided with an elongated slot 266 through which a pin 267 passes which also passes through the shell 264V and serves .means for guiding said shaft 265 to adjust the spools to the right or left. A second gear wheel, designated by numeral 268, is fixed to a similar shell 269 which is mounted upon the spool shaft 270 and a pin 271 passes through an el0ngated slot in the shaft 270 and also through an aperture in the shell 26!). Mounted upon a crank shaft 272, journalcd in suitable bearings 273, is a crank shaft 274 to which is splined a gear wheel 275 which is fixed to a collar 276 movable upon the shaft by means of a lever 27'? which is pivotally mounted upon apin 278i 279 designates a motor lmving pitman (.UlllltttlOIlS .180 with said crank shaft 274 and forming means for driving the same. By the manipulation of the lever 277, the gear wheel 275 may be thrown into mesh with a gear wheel 281 journaled upon the bracket 282 and which gear wheel 28] is in mesh with the gear wheel 263 for the purpose of rewinding the spool and, if the gear wheel 275 is moved in the opposite direction, it may be thrown into niesh with the gear wheel 268 for the purpose of-causing the music to wind ,upon the lower sp'ool. In the construction shown in Fig. 27, I have illustrated in dotted lines and designated by numeral 270 a manner of mounting the angle bars 270 so that the ends of said bars may engage the end of the spool shaft instead of engaging the shaft in movements,

the manner shown in solid lines in said figure.

Referring to Fig. 28, I have shown a bevel gear connection between the motor and the spools and consisting of a beveled gear wheel 283 fixed to a shell 284 in a similar manner as illustrated in Fig. 28 and which gear wheel is in mesh with a beveled pinion 285 fixed. to the vertically movable shaft 286. A pinion wheel 287 is also fixed to the shell 288 through which the shaft 286 has a. lon gitudinally splined movement. A beveled pinion 289 is in mesh with the pinion 287, said wheel 289 being fixed to the crank shaft 290 driven by the motor 291. An operating lever 292 is pivotallv connected to a lever 29 which is swivcled to the shell 294 which is keyed to the shaft 286. By the manipulation of said lever 292, it will be noted that the spools may be caused to wind in one direction or the other as may be desired.

*hat I claim to be new is1-- 1. In combination with the well of a piano player, a tracker board therein. rotatable spools mounted in said well means for imparting independent longitudinal movements to the spools, and means for moving at will the spools simultaneously in longitudinal direction.

2. In combination with the well of a piano player. a tracker board therein, rotatable spools mounted in said well and means for causing independent longitudinal movements to be imparted to the spools, means for moving at will the spools together longitudinally and indicating means showing the adjustments of the spools.

3. In combination with the Well of a piano player. a tracker board therein, rotatable spools journaled within said well and adapted to have independent longitudinal movements, means for moving said spools together longitudinally. one of said spools made up of independently movable, adjustable sections adapting the apparatus for playing sheets of music of different widths.

4. In combinatioi'i with the well of a piano player. a t ackcr board therein, rotata le spools journaled within said well and adapted to have independent longitudinal movements, means for moving said spools together longitudinally, one of said spools made up of independently movable, adjustable scct-ions adapting the apparatus for playing sheets of music of different widths, and indicating means for designating the longitudinal movements of the spools.

5. In combination with the well of a piano player, a-tracker board therein, rotatable spools journaled within saidwell and adapted to have independent longitudinal means for moving said spools together longitudinally, one of said spools made up of independently movable, adjust adapt d to able sections adapting the apparatus for playing sheets of music of different widths, lever-actuated mechanism for moving the spools longitudinally, and indicating means for designating the longitudinal movements of the spools.

6. In combination with the well of a piano player, a tracker board therein, rotatable spools journaled within said well and adapted to have independent longitudinal movements, means for moving said spools together longitudinally, one of said spools made up of inl'lependently movable, adjustablevsections adapting the apparatus for playing sheets of music of different widths, leveractu'ated mechanisn'i for moving the spools longitudinally, and a scale to operating with said lever mechanism for indicating the adjustments of the spools.

7. in combination with the well of a piano player. a tracker board therein. rotatable spools journaled within said well and adapted to have independent longitudinal movements, means for moving said spools together lt'mgitudiually, one of said spools made up of independently movable, adjustable sections adapting, the apparatus for playing sheets of music of different widths, an angle lever pivotally mounted upon the well, connections between the same and said spools for moving the latter longitudinally in one direction, springs for moving the spools in the opposite direction, a scale upon the well, a pivotal indicator movable over said scale and having pivotal connections with the angle lever.

8. In combination nith the well of a piano 1 layer, havingatrackerboardmounted therein, rotatable spools journalcd in bean ings in the well, one of said spools made up of sections having independent longitudinal movements, a longitudinallymovable hollow shaft upon which the sectional spool is mounted, a solid shaft over which the hollow shaft telescopes. said sections having independent longitudinal movements to adapt the spool to different widths of, music, mechanism for indicating: the longitudinal movements of the spools. and means for causing the perforated sheet to wind from one spool to the other.

9. in cmz'ibimitiou with the well of a piano player, tatable spools journalcd within the well and upon which a perforated sheet of music is wind, means for moving the spools longitudinally to play pieces in different keys, one of said spools made up of rclativcly movable secti ns, a hollow shaft upon which said sections are mounted, a solid shaft upon which the hollow shaft is mounted. means f r causing the two shafts to rotate together, and means for causing the perforated music sheet to wind upon either spool.

a ll'ttt'lttl'lltlzlltl mounted therein, ro-

l l l a l l l i l l l l l I l 1 lO l n combination with the well of a )iano player, a tracker-board mounted therein, rotatable spools journaled within the well and upon which aperforated sheet of music is adapted to wind, means for moving the spools longitudinally to play pieces in ditl'crent keys, one of said spools made up of independently movable sections, a hollow shaft upon which. said sections are mounted, a solid shaft upon which the hollow shaft is mounted, means for causing, the two shafts to rotate together, means for causing the perforated music sheet to wind upon either spool, and means for indicating the longitudinal movements of the spools.

11. In combination with. the well of a iiano player, a trackerboard mounted therein, rotatable spools journaled within the well and upon which a. perforated sheet of music is ada ted to wind, ing the spec longitudinally to play pieces in different keys, one of said spools made up of relatively .movable sections, a hollow shaft upon which ,said sections are mounted, a solid shaft up'bn which the hollow shaft is mounted, means for causing the two shafts to rotate together, a gear wheel fixed to said solid shaft, a longitudinally movable shaft, ii pinion upon the latter adapted to mesh with said gear wheel, and driving means for causing a perforated music sheet to wind upon either spool.

12. In combination with the well of a piano player, a yielding spindle receiving socket member and an adjustable socket member mounted in the well, a spool having spindle ends mounted in said socket members, a solid shaft journalcd in the well, a hollow shaft telescoping over said solid shaft and having a longitudinal movement independent of the latter, a sectional spool mounted upon the hollow-shaft, means for moving said hollow shaft and the spool mounted in said socket members simultaneously in longitudinal directions for pluying pieces of music in different keys, and mechanism for causing the music sheet to wind upon either of the spools.

13. In combination with the well of a piano player, a yielding spindle receiving socket member and an adjustable socket member mounted in the well, a spool having spindle ends mounted in said socket members, a solid shaft journaled in the well, a hollow shaft telescoping over said solid shaft and having a yielding longitudinal movement independent of the latter, means for moving said hollow shaft and the spool mounted in said socket members longitudinally to play pieces of music in dilfcrent keys, and means for causing the music sheet to wind upon one spool or the other.

l-l. ln combination with the well of a piano player, a yielding spindle receiving socket member and an adplstable socket means for movmember mounted in the Well, a spool having spindle ends mounted in said socket members, a solid shaft journaled in the well, a hollow shaft telescoping over said solid shaft and having a yielding longitudinal movement independent of the latter, means formoving said hollow shaft and the spool mounted in said socket members longitudinally to play pieces of music in different keys, and means for indicating the longitudinal movements of the spools.

15. In combination with the Well of a piano player, a yielding spindle receivihg socket member and an adjustable socket member mounted in the Well, a spool having spindle ends mounted in said socket members, a solid shaft journaled in the well, a hollow shaft telescoping over said solid shaft and having a yielding longitudinal movement independent of the latter, means for moving said hollow shaft and the spool mounted in said socket members longitudinally to play pieces of music in different keys, means for indicating the longitudinal movements of the spools, a gear wheel fixed to said solid shaft, a longitudinal movable counter shaft journaledin suitable hearings in the well, a pinion upon said counter shaft and adapted to mesh with said gear wheel, a sprocket wheel upon said counter shaft, journaled in the well and adapted to rotate one of said spools, a shell rotating with said adjustable socket member, a sprocket wheel keyed to said shell, sprocket chain connections between said sprocket wheels, and means for causing the music sheet to wind upon either spool.

16. In combination with the well of a piano player, a yielding spindle receiving socket member and an adjustable socket member mounted in the well, a spool having spindle ends mounted in said socket mom ,hers, a solid shaft journaled in the well, a hollow shaft telescoping over said solid shaft and having a yielding longitudinal movement independent of the latter, a spool made up of sections having relative longi tudinal movements upon said hollow shaft, means for causing the sections to rot ate with the latter, and means for moving the spools longitudinally for playing pieces of music in different keys.

17. In combination with the well of a piano player, a yielding spindle receiving socket member and an adjustal'ilo socket member mounted in the well, a spool having spindle ends mounted in said socket members, solid shaft journaled inthe well, a hollow shaft telescoping over said vsolid shaft and having a yielding longitudinal movement independent of the latter. said solid shaft having a longitudinal groove, a

lug projecting from the inner surface of the hollow shaft and engaging said groove, a spool made up of sections mounted upon the hollow shaft and having relative longitudinal movements, means for holding the sections in different adjusted positions and adapting the latter for music sheets of different widths, and means for moving the spools longitudinally to play pieces in different keys.

18. In combination with the well of a piano player, a yielding spindle receiving socket member and an adjustable socket member mounted in the well, a spool having spindle ends mounted in said socket members, a solid shaft journaled in the Well, a hollow shaft telescoping over said solid shaft and having a yielding longitudinal movement independent of the latter, said solid shaft having a longitudinal groove, :1 lug projecting from the inner surface of the hollow shaft and engaging said groove, a spool made up of sections mounted upon the hollow shaft and having relative longitudinal movements, said hollow shaft having a longitudinal groove, 'n'ojections upon each of said sections engaging the groove in said hollow shaft and adapted to hold the sections in longitudinally adjusted positions, and means for moving the spools longitudinally to play pieces in different keys.

19. In combination with the well of a piano player, a yielding spindle receiving socket member and an adjustable socket member mounted in the well. a spool having spindle ends mounted in said socket members, a vsolid shaft journaled in the well, a hollow shaft telescoping over said solid shaft and having a ;'iclding longitudinal movement ii'idependent of the latter, said solid shaft having a longitudinal groove. a lug projecting from the inner surface of the hollow shaft and engaging said groove, a spool made up of sections mounted upon the hollow shaft and having relative longitudinal movements. said hollow v haft having a longitudinal groove, pro ections upon each of said section engaging the groove in said hollow lnlfl and adapted to hold the scc tions in longitud nally adplstcd ptiHlllUlh,

means for mining the --pool longitudinally to play l)lt t'.\ in different keys. :1 gear \\'llttl fixed to v aid solid shaft, a longitudinally movable counter :liaft jonrnaled in the well, a pinion fixed to aid counter \llilfl and adapted to mesh with said gear wheel, a shell in which one of aid socket members is mounted, sprocket wheel and hain connee tions between said counter haft and shell. clutch collars upon said shell and counter shaft, a rod connecting said collars, and means connected to said rod for moving th latter to cause aanusic sheet to wind upon either spool.

20. In combination with the well of a piano player, a fixed 't'raclv'erhoard mounted therein. spools upon which a perforated sheet of music is adapted to wind, movable 

